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Finding the Fourth Proportional to 633,407.76, 874,119.71 and 357,743.50

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Solution

The fourth proportional to 633,407.76, 874,119.71 and 357,743.50 is: 493,695.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,407.76 : 874,119.71 = 357,743.50 : x
  2. Step 2: Convert to fraction form
    633,407.76/874,119.71 = 357,743.50/x
  3. Step 3: Cross multiply
    633,407.76x = 874,119.71 × 357,743.50
  4. Step 4: Simplify right side
    633,407.76x = 312,710,643,183.44
  5. Step 5: Solve for x
    x = 312,710,643,183.44/633,407.76
  6. Step 6: Final answer
    x = 493,695.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.